What is PCl5? Important Knowledge about PCl5.

  1. Definition of PCl5
    Phosphorus pentachloride (PCl5) is a chemical compound with a molecular weight of 208.24 g/mol. It is a white solid with a molecular structure consisting of a central Phosphorus (P) atom surrounded by five Chlorine (Cl) atoms forming covalent bonds. PCl5 does not exist as ions in its individual molecules.

  2. Properties of PCl5
    2.1 Physical properties
    PCl5 is a white, odorless solid under normal conditions. Its pH cannot be determined as it is a solid that does not dissolve in water.
    2.2 Chemical properties
    PCl5 is highly reactive, it reacts with water to form hydrochloric acid and phosphoric acid.

  3. Common chemical equations
    Since PCl5 is highly reactive, it can generate various reactions. For instance, it reacts with metals such as sodium (2Na + PCl5 -> 2NaCl + PCl3)orwithacidssuchasH2SO4(PCl5 + H2SO4. Reactions with non-metals and salts are generally not observed in PCl5.

  4. Synthesis of PCl5
    4.1 Laboratory synthesis
    PCl5 can be synthesized by reacting white phosphorus with chlorine under high heat conditions.
    P4 + 10Cl2 -> 4PCl5.
    4.2 Industrial synthesis
    In industry, PCl5 is usually produced by stimulating chlorine and phosphorus under high heat.

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